Answer:
z = 13 degrees
Step-by-step explanation:
1.) Those two angles add up to 90 degrees, so we can say that 5z - 6 + 2z + 5 = 90
2.) Simplify both sides to get 7z - 1 = 90.
3.) Isolate Variable by adding 1 on both sides to get 7z = 91.
4.) Divide by 7 on both sides to find that z = 13 degrees.
